And Canst Thou Say

And canst thou say thou dost not know
The cause that clouds my pensive brow?
That steals the roses from my cheek,
And bids my tongue forbear to speak?
Dulls the gay lustre of my eye
And fills my breast with many a sigh?
Bids o’er my heart love’s anguish creep
And scares the gentle god of sleep?
This true, thou dost not know the elf
Ah no! thou dost not know thyself